linux-kernel - Re: [RFC PATCHv2] x86/pci: Initial commit for new VMD device driver

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Date:	Sun, 4 Oct 2015 08:29:16 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Keith Busch <keith.busch@...el.com>
Cc:	kbuild-all@...org, LKML <linux-kernel@...r.kernel.org>,
	x86@...nel.org, linux-pci@...r.kernel.org,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Dan Williams <dan.j.williams@...el.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Bryan Veal <bryan.e.veal@...el.com>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	Keith Busch <keith.busch@...el.com>
Subject: Re: [RFC PATCHv2] x86/pci: Initial commit for new VMD device driver

Hi Keith,

[auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]

config: i386-randconfig-h1-10040721 (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   In file included from arch/x86/pci/vmd.c:25:0:
>> arch/x86/include/asm/vmd.h:34:13: warning: 'vmd_add_dma_device' defined but not used [-Wunused-function]
    static void vmd_add_dma_device(struct vmd_dev *vmd) {}
                ^
>> arch/x86/include/asm/vmd.h:35:13: warning: 'vmd_del_dma_device' defined but not used [-Wunused-function]
    static void vmd_del_dma_device(struct vmd_dev *vmd) {}
                ^

vim +/vmd_add_dma_device +34 arch/x86/include/asm/vmd.h

    28	struct irq_domain *arch_create_vmd_msi_irq_domain(struct pci_dev *dev,
    29					const struct irq_domain_ops *domain_ops);
    30	#ifdef CONFIG_X86_DEV_DMA_OPS
    31	void vmd_add_dma_device(struct vmd_dev *vmd);
    32	void vmd_del_dma_device(struct vmd_dev *vmd);
    33	#else
  > 34	static void vmd_add_dma_device(struct vmd_dev *vmd) {}
  > 35	static void vmd_del_dma_device(struct vmd_dev *vmd) {}
    36	#endif
    37	
    38	#endif

---
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